dmaengine: tegra-apb: Remove unused variables

The callback and callback_param members of the tegra_dma_sg_req structure
are never used. The dma-engine structure, dma_async_tx_descriptor, defines
the same members and these are the ones used by the driver. Therefore,
remove the unused versions from the tegra_dma_sg_req structure.

The half_done member of tegra_dma_channel structure is configured but
never used and so remove it.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index eaf585e8286b491da7dba4af594e59f0649b7f4d..cf8cff7827f0a1c96e18bfec6bb73154493f5ace 100644 (file)
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -155,7 +155,6 @@ struct tegra_dma_sg_req {
        int                             req_len;
        bool                            configured;
        bool                            last_sg;
-       bool                            half_done;
        struct list_head                node;
        struct tegra_dma_desc           *dma_desc;
 };
@@ -203,8 +202,6 @@ struct tegra_dma_channel {
        /* ISR handler and tasklet for bottom half of isr handling */
        dma_isr_handler         isr_handler;
        struct tasklet_struct   tasklet;
-       dma_async_tx_callback   callback;
-       void                    *callback_param;
 
        /* Channel-slave specific configuration */
        unsigned int slave_id;
@@ -1136,7 +1133,6 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
                sg_req->ch_regs.apb_seq = apb_seq;
                sg_req->ch_regs.ahb_seq = ahb_seq;
                sg_req->configured = false;
-               sg_req->half_done = false;
                sg_req->last_sg = false;
                sg_req->dma_desc = dma_desc;
                sg_req->req_len = len;